Mr. Huang is sixty year old. He has retired. He taught us  

76.    _       

chemistry when we were in Senior Grade One. He was old, and

77.  _______ _ 

he taught very well. He tried his best to make his classes live. Mr. 

78.   _______ 

Huang usually made well preparations for the lessons and was  

79.   _______ 

strict with us too. Each time we made mistakes in our homework,

80.  ______   

he would ask us to correct it. At one time, I was rather poor in  

81.  ______   

chemistry. Mr. Huang often helps me with my study very     

82.  ______   

patiently. With his help, I made a great progress and caught      

83.   ______  

up the class. He was always very kind to every student. As        

84.   ______  

an experiencing teacher, he was respected and loved by all      

85.   ______  

the students.